Energy storage device and method for supplying large amount of steam

Abstract

The invention relates to an energy storing device and method for supplying large quantities of steam. The energy storing device comprises a pressurizing vessel, a cold water inlet pipe, overflowing pipes, a bottom blowoff valve, a trunk pipeline, a steam outlet switch valve and a steam outlet pipe, wherein the pressurizing vessel is divided into multi-level energy storing chambers through separating plates; a cold water inlet switch valve for controlling the entering of cold water is arranged on the cold water inlet pipe; the overflowing pipes are arranged between adjacent energy storing chambers and used for enabling water to flow from the energy storing chamber at high level into the energy storing chamber at low level; the level of the liquid in the energy storing chamber at the last level can be reduced to reach a target level through the bottom blowoff valve; the trunk pipeline is connected with a steam inlet pipe; a steam inlet switch valve is arranged on the steam inlet pipeline and can be opened to enable the steam to enter the trunk pipeline; the trunk pipeline is connected with a steam distributing ring which is provided with pores in each energy storing chamber, so that the steam can enter each energy storing chamber through the steam distributing rings; the steam outlet switch valve is used for discharging steam and air mixture; the steam outlet pipe is provided with steam outlet branch pipes in each energy storing chamber; steam discharging holes are formed in the steam outlet branch pipes, so that the steam can be discharged through the steam outlet pipe.

Description

technical field [0001] The invention relates to an energy storage device for supplying large-scale steam and to a method for supplying large-scale steam. Background technique [0002] For intermittent steam demand or peak steam demand, users have different steam demands at different times and under different conditions. For example, in a certain period of time, the heat consumption is small, and in another period of time, the heat consumption is large, so that the heat demand varies greatly, which will cause the boiler output to oscillate, which is not conducive to the stable gas supply and the safe operation of the boiler, and the rated power of the boiler Fluctuating heat demand peaks must be covered, resulting in waste. In order to meet the user's requirements, there must be a peak supply of steam, and the characteristics of a large steam peak load are that the peak duration is not long, and the peak value is significantly higher than the average steam supply. Therefore...

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Problems solved by technology

When a conventional steam boiler is used for steam supply, the required boiler power is extremely large, which makes it difficult to meet the requirements in terms of initial investment and power supply requirements

If the traditional energy storage tank is used for steam supply, the energy storage tank is bulky, and thermal stratification will also occur, which will affect the quality of steam output

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